Yamaha YZ250(V), Owner'S Service Manual

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3. Install:
9 Pilot air screw
1
9 Throttle stop screw
2
*For EUROPE
**For AUS, NZ and ZA
4. Install:
9 Starter plunger
1
4-14
ENG
CARBURETOR AND REED VALVE
Pilot air screw:
1 turn out
*2-1/4 turns out
**1-1/4 turns out
(for reference only)
Note the following installation points:
9 Turn in the pilot air screw until it is lightly
seated.
9 Turn out the pilot air screw by the number of
turns recorded before removing.
5. Install:
9
Pilot jet
1
9 Main jet
2
6. Install:
9 Needle valve
1
9 Float
2
9 Float pin
3
NOTE:
9 After installing the needle valve to the float,
install them to the carburetor.
9 Check the float for smooth movement.
1P8-9-31-4A 5/12/05 1:18 PM Page 28